{"product_id":"radiolink-r4fgm-is-a-micro-4-channel-receive","title":"Radiolink R4FGM is a micro 4-channel receive","description":"\u003cp\u003e\u003cspan\u003eThe Radiolink R4FGM is a micro 4-channel receiver featuring an integrated gyro, specifically designed for mini and micro-scale RC vehicles (like 1\/28 or 1\/64 builds, drift cars, and mini crawlers). \u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eDimensions: 25 mm × 13 mm (0.98\" × 0.51\")\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eWeight: 3 g (0.11 oz)\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eAntenna Length: 90 mm (3.54\") \u003c\/span\u003e\u003cspan\u003e(Note: Older production runs may feature a longer 200mm+ antenna wire)\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eChannels: 4 channels\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eSignal Output: PWM\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eFrequency: 2.4GHz ISM band (2400MHz ~ 2483.5MHz)\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eSpread Spectrum: FHSS (67-channel pseudo-random frequency hopping)\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eChannel Resolution: 4096 (0.25µs per section)\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eOperating Voltage Range: 3.0V to 10.0V DC \u003c\/span\u003e\u003cspan\u003e(Supports High Voltage servos)\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eOperating Current: 30mA @ 5V (varies slightly based on input voltage)\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eRF Power: \u0026lt;10dBm\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eControl Range: Up to 400 meters (1,312 feet) on the ground\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eOperating Temperature: -30°C to 85°C\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eSafety Feature: Built-in reverse polarity protection (prevents damage if plugged in backward)\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFirmware \u0026amp; Response Speed (V2.0 \/ V2.1)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eResponse Rates: 14ms (Default\/FHSS V1 for analog servos). When paired via the FHSS V2 protocol on compatible transmitters (like the RC8X running firmware V1.1.5 or newer), response times can be selected down to 4ms or 3ms to take advantage of high-speed digital servos.\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003eNote:\u003c\/span\u003e\u003cspan\u003e Versions produced after April 26, 2023 (tagged V2.1) natively support these high-speed digital servo response modes.\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIntegrated Gyro Modes\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eStandard Mode (Default): Solid green LED indicator; outputs standard PWM without stabilization.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eGyro Mode: Solid green + solid red LED indicator; stabilization activated.\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eToggling the Gyro: Press the side ID SET button 3 times within 1 second to turn the gyro mode on\/off.\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eReversing Gyro Phase: Press the ID SET button twice within 1 second if the steering corrections are working backward. Gyro sensitivity can be fine-tuned remotely via a designated channel\/switch on the transmitter.\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTransmitter Compatibility\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFully compatible with Radiolink surface and air transmitters utilizing their FHSS protocol:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eSurface Transmitters: RC8X, RC6GS (V1-V3), RC4GS (V1-V3)\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003eAir\/Stick Transmitters: T8S, T8FB, T12D, T16D\u003c\/span\u003e\u003c\/p\u003e","brand":"Big Kid Tiny Truck RC","offers":[{"title":"Default Title","offer_id":53430534308134,"sku":null,"price":19.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.bigkidtinytruckrcs.com\/products\/radiolink-r4fgm-is-a-micro-4-channel-receive","provider":"Big Kid Tiny Truck RC","version":"1.0","type":"link"}